Cal Crutchlow's perfect run of top ten finishes was brought to an unsatisfying conclusion in the Indianapolis Grand Prix as he slid into the retirement for the first time this season.

The British rider came into the American event as one of only two riders to have finished each race inside the top eight this season (the other being Dani Pedrosa), but his Indianapolis challenge would end just after just ten laps when he low-sided at turn four.

Unable to get back going again, Crutchlow was left to rue an accident that he described as almost identical to one that he suffered in FP3, though the Briton insists he was content with his performance across the weekend as a whole.

"The day was sh*t," he said. "But I think that we have to go away from here still positive. I made a big step from last year. My lap time this year was 1.2 seconds faster than last year, and no one else made that step.

"So I think we can still take another positive away. Yeah, I crashed in the race. I haven't been the only guy to crash in a race this year. I did exactly the same as what I did in the FP3 crash, at the hairpin.

"Whether it was me or whether it was a little bit of the setting, as well, I wasn't comfortable with the explaining of the situation why over the whole weekend. But we never seemed to make any improvement in that area. I hope to go to Brno and make amends because it's only a week away."